I'm not a huge fan of most of the music on Nashville, but this Civil Wars cover is fantastic. Clare Bowen's voice is sweet and haunting all at once, and they've got the tight harmony nailed.

I'd purchase it right away, but evidently Big Machine gave apple an exclusive, and I refuse to install itunes on any of my machines.

edit: forgot to mention, if you enjoy the tune and would like to hear the original artist perform it, they have a fee live album you can download from: http://thecivilwars.com/music.php that includes this song.